Twister, a new versatile affordable capsule-based Dry powder Inhaler (DPI), with the aim of bringing cost effective drug delivery devices to pharmaceutical companies, helping them market affordable healthcare treatment to patients worldwide. It is by nature simple to use, and will allow a wider range of asthma sufferers to not only gain better access to medication but also become more compliant with the treatment they receive due to its feedback design. This as an off-the-shelf device, suitable for a variety of different drug compounds and formulations. It is a transparent patient-friendly device. Only 3 simple steps are needed to operate it – Insert, Twist and Inhale – and the patient will be guided by various audible and visual feedbacks confirming that the full dose has been properly delivered.